He jumps from a 90 kilogram place to the fire net 9 meters high. Find the potential energy of the spring that is being stretched, assuming that there is no loss of energy due to non-conservative forces.

Q: If an object is dropped from 10 m above the ground, what is the height at which it’s kinetic energy…

A: Given that the object is dropped from a height of 10m above the ground.The question is to find at…

Q: A child is standing on top of a 15ft hill, getting ready to run down all the way to the bottom. If…

A: Introduction: The energy of a body is stored in the form of potential energy due to the height…

Q: what is the kinatic energy of a system with a speed of 4.30m/s and a mass of 410 kg after a distance…

A:

Q: How much potential energy does a person of mass 75 kg have if they are standing at the top of a…

A: The mass of a person is, m=75 kg The height of a building is, h=74.1 m

Q: An ideal spring with a force constant (spring constant) of 15 N/m is initially compressed by 3.0 cm…

A: Let initial compression in the spring, xi= 0.03cm Let final compression in the spring, xf=0.03+0.04…

Q: A pogo stick has a spring with a spring constant of 2.5 × 104 N/m, which can be compressed 12.0 cm.…

A:

Q: A 2 kg mass is attached to a spring and the spring is stretched 11 cm storing 1.5 J of potential…

A: M= 2 kg X= 11 cm = .11m Energy (U) = 1.5 joule

Q: Find the potential energy gained by a body of mass 60 kg, if it is raised by 12 m. (use g = 10 m/s2)…

A: Potential energy is defined as the product of mass, gravitational acceleration and height. PE = mgh

Q: A block of mass 4.2 kg is placed against a horizontal spring of constant of 939 N/m and pushed so…

A:

Q: Find the potential energy gained by a body of mass 25 kg, if it is raised by 5 m. (use g = 10 m/s2)…

A: The given values with suitable variables are listed below. Here, m denotes the mass, h denotes the…

Q: An ideal spring of negligible mass is 12,00 cm long when nothing is attached to it. When you hang a…

A: Find the spring constant. F=kxmg=kxk=mgx Substitute the values. k=3.15 kg9.8 m/s213.40 cm-12.00…

Q: Approximately 14 m in length, twin jets operate with maximum power 144 kW. How much energy does a…

A: Power is rate of work done it means energy used per unit time Energy = Power × time

Q: A 2-kg cannon ball has a potential energy PE of 6400 J at a point X above the ground. What will its…

A: Given data:     Mass, m = 2 kg      Potential energy, PE = 6400 J

Q: A boy of mass m climbs up the stairs of vertical height h. What would have been work done if he uses…

A: The only force acting on the boy is gravitational force or his own weight "mg". So, when a body…

Q: What is the potential energy (compared to the floor) of a 1200N box which is 4.0 m above the floor?

A:

Q: If you push a crate horizontally with 100 N across a 10-m factory floor and friction between the…

A: The horizontal force is 100N, the frictional force is 70N, and the distance moved by the crate is…

Q: What is the potential energy of a 3kg ball that is on the ground?

A:

Q: The mass of 1 cubic meter of fresh water at the top of a 100 m hydroelectric dam is 1,000 kg and it…

A: Given: The mass of the water is m=1000 kg. The height of the dam is h=100 m. The volume of water is…

Q: A pogo stick has a spring with a force constant of 2 × 104 N/m, which can be compressed 15.91 cm. To…

A: The maximum height that the child can jump with the pogo stick can be determined by the conservation…

Q: A trained archer has the ability to draw a longbow with a force of up to 0.31 KN, extending the…

A: F= 0.31kN = 310 N  x= 0.5m

Q: An 0.45 kg apple hangs from a tree and is about to fall to the ground. If the apple is 12 meters…

A: Given, mass, m=0.45 kgheight, h=12 macceleration due to gravity, g=-9.8 ms2Potential energy, U=?…

Q: Suppose that 3J  of work is needed to stretch a spring from its natural length of  30cm to a length…

A:

Q: What is the Potential energy stored in the spring at the time of launch?  Given: Mass of rider along…

A:

Q: What is the efficiency of an out-of- condition professor who does 2.10 x 10^5 J of useful work while…

A:

Q: What is the potential energy of an airplane that is only 0.5489 km off the ground and weighs 4120 kg

A: Given that, an airplane that is only 0.5489 km off the ground. That means  Distance, d = 0.5489 km…

Q: A pogo stick has a spring with a force constant of 2.50×104 N/m, which can be compressed 12.0 cm. To…

A:

Q: What is the energy stored in a rubber band if it has a spring constant of 28 N/m and is stretched…

A: Answer           A) 0.88 J

Q: Theo, slides down a slide, from rest, with a length of 2.00 m at an incline of 60° above the…

A:

Q: A spring with a spring constant k = 852 N/m is compressed from its unstretched length to a length of…

A: The potential energy of the spring is given by 0.5kx^2            where k= spring constant…

Q: You have a spring with a spring constant 3990 N/m. How far, in centimeters, would you have to…

A: write the formula for the spring potential energy as, U=12kx2 Here, U is the spring potential in…

Q: Show that about 786 W of power is expended when a 500-N barbell is lifted 2.2 m above the floor in…

A: The expression for the power is,

Q: Uncompressed, the spring for an automobile suspension is 45.0 cm long. It needs to be fitted into a…

A: Potential energy of a spring is defined as the energy stored in it when the spring is displaced from…

Q: How much work does Ryan do as he carries this bag of potatoes to his car, which is parked 45 m away?…

A: Given data:    Distance, d = 45 m

Q: Calculate the kinetic energy and potential energy of a 600 kg car up hill at 20 meters and is runnin…

A: kinetic energy = 12mv2 potential energy = mgh

Q: An ideal spring of negligible mass is 12,00 cm long when nothing is attached to ît, When you hang a…

A: Given: The natural length of the spring is 12 cm. The final length of the spring is 13.4 cm due to…

Q: Consider a ball thrown straight up in air. At what position is its kinetic energy at a maximum?…

A: The speed of the ball decreases at a constant rate equal to acceleration due to gravity and becomes…

Q: A boy of mass 45 kg climbs a vertical rope 9 meters in length in 15 seconds with constant velocity.…

A:

Q: Find the potential energy of 4 kg mass kept at height of 6 m. Take g = 10 m/s²

A: Given data:  Mass (m) = 4 kg Height (h) = 6 m g = 10 m/s2 Required: The potential energy (PE)

Q: A basketball of mass 0.0400 kg is dropped from a height of 5.00 m to the ground and bounces back to…

A:

Q: When a spring is stretched by 1.0 m, its spring potential energy is 200 J. What will its spring…

A: Dear student The spring potential energy is given by : U = 0.5 Kx2 Where K = Spring constant x =…

Q: at is the Potential energy of an 82kg boulder placed on top o b) 4810 J a) 4180 J c) 4108 J a…

A: (8)Given values:- Mass of the boulder,(m)=82 kg ----(1) Height of the hill,(h)=5 m ----(2)…

Q: A 6.26 kg box is pushed up against a 50,706 N/m spring. The box is then released and upon leaving…

A: mass of box is m = 6.26 kg spring constant k = 50706 N/m the initial speed of block  upon leaving…

Q: What is the gravitational potential energy of a 5.0 kg object that has been raised 12 m above the…

A:

Q: A fireman of mass 80 kg slides down a pole. When he reaches the bottom, 4.2 m below his starting…

A: Given, Mass, m= 80 kg, height, h= 4.2 m, and speed, v=2.2 m/s.

Q: A rock weighs 700 g and has a potential energy of 1 500 J. What height is it found at?

A: The solution can be given as :-

Q: The work done by the conservative force F = -kx = –4x to move the block from x = -0.25 m to x = 0…

A:

Q: A generator is rated at 22500 Watts. Convert its power to horsepower using 1.00 hp = 746 Watts. A…

A: Part (1)  Given :  Power rated of generator, P = 22500 W  1.00 hp = 746 Watts  So Power in…